/* The copyright in this software is being made available under the BSD
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 * Copyright (c) 2010-2011, ITU/ISO/IEC
 * All rights reserved.
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/** \file     ContextModel3DBuffer.cpp
    \brief    context model 3D buffer class
*/

#include "ContextModel3DBuffer.h"

//! \ingroup TLibCommon
//! \{

// ====================================================================================================================
// Constructor / destructor / initialization / destroy
// ====================================================================================================================

ContextModel3DBuffer::ContextModel3DBuffer( UInt uiSizeZ, UInt uiSizeY, UInt uiSizeX, ContextModel *basePtr, Int &count )
: m_sizeX  ( uiSizeX )
, m_sizeXY ( uiSizeX * uiSizeY )
, m_sizeXYZ( uiSizeX * uiSizeY * uiSizeZ )
{
  // allocate 3D buffer
  m_contextModel = basePtr;
  count += m_sizeXYZ;
}

// ====================================================================================================================
// Public member functions
// ====================================================================================================================

/**
 * Initialize 3D buffer with respect to slicetype, QP and given initial probability table
 *
 * \param  eSliceType      slice type
 * \param  iQp             input QP value
 * \param  psCtxModel      given probability table
 */
Void ContextModel3DBuffer::initBuffer( SliceType eSliceType, Int iQp, Short* psCtxModel )
{
  psCtxModel += 2 * eSliceType * m_sizeXYZ;
  
  for ( Int n = 0; n < m_sizeXYZ; n++ )
  {
    m_contextModel[ n ].init( iQp, psCtxModel + 2 * n );
  }
}
//! \}
